[PATCH 0/4] arm64: Add initial Actions Semi S700 and CubieBoard7 support

[PATCH 0/4] arm64: Add initial Actions Semi S700 and CubieBoard7 support

[Andreas Färber]

Hello,

This series prepares the Actions Semi S700 SoC and Cubietech CubieBoard7.
It boots equally far as the S900 based Bubblegum-96 these patches are based on,
i.e. into an initrd with serial and all four cores up.

I have not yet managed to download the CubieBoard7 sources from Baidu, and the
Mega download has not yet been fixed, so this is based on the S700 datasheet
and /proc/device-tree/ from the preinstalled Android.

Lacking sources and instructions to replace the bootloader on eMMC or to try
booting from SD, the only working way I've found to boot mainline kernels
appears to be booting into Android, then issuing "reboot bootloader". U-Boot
is lacking the saveenv command, so it wasn't possible to change the bootdelay
to facilitate this.

Cf. https://en.opensuse.org/HCL:CubieBoard7

Work branch:
https://github.com/afaerber/linux/commits/bg96-next

Have a lot of fun!

Cheers,
Andreas

Cc: Ahha Lee <lee@cubietech.com>
Cc: support@cubietech.com

Cc: devicetree@vger.kernel.org
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>

Andreas Färber (4):
  dt-bindings: arm: actions: Add S700 and CubieBoard7
  dt-bindings: timer: Add Actions Semi S700
  clocksource: owl: Prepare S700
  arm64: dts: actions: Add S700 and CubieBoard7

 Documentation/devicetree/bindings/arm/actions.txt  |  15 ++
 .../bindings/timer/actions,owl-timer.txt           |   1 +
 arch/arm64/boot/dts/actions/Makefile               |   2 +
 arch/arm64/boot/dts/actions/s700-cubieboard7.dts   |  47 ++++++
 arch/arm64/boot/dts/actions/s700.dtsi              | 164 +++++++++++++++++++++
 drivers/clocksource/owl-timer.c                    |   1 +
 6 files changed, 230 insertions(+)
 create mode 100644 arch/arm64/boot/dts/actions/s700-cubieboard7.dts
 create mode 100644 arch/arm64/boot/dts/actions/s700.dtsi

-- 
2.13.5

[PATCH 1/4] dt-bindings: arm: actions: Add S700 and CubieBoard7

[Andreas Färber]

Document the Actions Semi S700 SoC and the Cubietech CubieBoard7.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 Documentation/devicetree/bindings/arm/actions.txt | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/actions.txt b/Documentation/devicetree/bindings/arm/actions.txt
index ced764a8549e..544a8855fad5 100644
--- a/Documentation/devicetree/bindings/arm/actions.txt
+++ b/Documentation/devicetree/bindings/arm/actions.txt
@@ -25,6 +25,21 @@ Root node property compatible must contain, depending on board:
  - LeMaker Guitar Base Board rev. B: "lemaker,guitar-bb-rev-b", "lemaker,guitar"
 
 
+S700 SoC
+========
+
+Required root node properties:
+
+- compatible :  must contain "actions,s700"
+
+
+Boards:
+
+Root node property compatible must contain, depending on board:
+
+ - Cubietech CubieBoard7: "cubietech,cubieboard7"
+
+
 S900 SoC
 ========
 
-- 
2.13.5

Re: [PATCH 1/4] dt-bindings: arm: actions: Add S700 and CubieBoard7

[Rob Herring]

On Mon, Sep 11, 2017 at 04:22:38AM +0200, Andreas Färber wrote:
> Document the Actions Semi S700 SoC and the Cubietech CubieBoard7.
> 
> Signed-off-by: Andreas Färber <afaerber@suse.de>
> ---
>  Documentation/devicetree/bindings/arm/actions.txt | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)

Acked-by: Rob Herring <robh@kernel.org>

[PATCH 2/4] dt-bindings: timer: Add Actions Semi S700

[Andreas Färber]

Define a compatible string for the Actions Semi S700 SoC timer.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 Documentation/devicetree/bindings/timer/actions,owl-timer.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/timer/actions,owl-timer.txt b/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
index e3c28da80cb2..977054f87563 100644
--- a/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
+++ b/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
@@ -2,6 +2,7 @@ Actions Semi Owl Timer
 
 Required properties:
 - compatible      :  "actions,s500-timer" for S500
+                     "actions,s700-timer" for S700
                      "actions,s900-timer" for S900
 - reg             :  Offset and length of the register set for the device.
 - interrupts      :  Should contain the interrupts.
-- 
2.13.5

Re: [PATCH 2/4] dt-bindings: timer: Add Actions Semi S700

[Rob Herring]

On Mon, Sep 11, 2017 at 04:22:39AM +0200, Andreas Färber wrote:
> Define a compatible string for the Actions Semi S700 SoC timer.
> 
> Signed-off-by: Andreas Färber <afaerber-l3A5Bk7waGM@public.gmane.org>
> ---
>  Documentation/devicetree/bindings/timer/actions,owl-timer.txt | 1 +
>  1 file changed, 1 insertion(+)

Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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[PATCH 4/4] arm64: dts: actions: Add S700 and CubieBoard7

[Andreas Färber]

Add Device Trees for S700 SoC and Cubietech CubieBoard7.

Signed-off-by: Andreas Färber <afaerber-l3A5Bk7waGM@public.gmane.org>
---
 arch/arm64/boot/dts/actions/Makefile             |   2 +
 arch/arm64/boot/dts/actions/s700-cubieboard7.dts |  47 +++++++
 arch/arm64/boot/dts/actions/s700.dtsi            | 164 +++++++++++++++++++++++
 3 files changed, 213 insertions(+)
 create mode 100644 arch/arm64/boot/dts/actions/s700-cubieboard7.dts
 create mode 100644 arch/arm64/boot/dts/actions/s700.dtsi

diff --git a/arch/arm64/boot/dts/actions/Makefile b/arch/arm64/boot/dts/actions/Makefile
index 62922d688ce3..cfd7f2679feb 100644
--- a/arch/arm64/boot/dts/actions/Makefile
+++ b/arch/arm64/boot/dts/actions/Makefile
@@ -1,3 +1,5 @@
+dtb-$(CONFIG_ARCH_ACTIONS) += s700-cubieboard7.dtb
+
 dtb-$(CONFIG_ARCH_ACTIONS) += s900-bubblegum-96.dtb
 
 always		:= $(dtb-y)
diff --git a/arch/arm64/boot/dts/actions/s700-cubieboard7.dts b/arch/arm64/boot/dts/actions/s700-cubieboard7.dts
new file mode 100644
index 000000000000..e562f04c2490
--- /dev/null
+++ b/arch/arm64/boot/dts/actions/s700-cubieboard7.dts
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+#include "s700.dtsi"
+
+/ {
+	compatible = "cubietech,cubieboard7", "actions,s700";
+	model = "CubieBoard7";
+
+	aliases {
+		serial3 = &uart3;
+	};
+
+	chosen {
+		stdout-path = "serial3:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x80000000>;
+	};
+
+	memory@1,e0000000 {
+		device_type = "memory";
+		reg = <0x1 0xe0000000 0x0 0x0>;
+	};
+
+	uart3_clk: uart3-clk {
+		compatible = "fixed-clock";
+		clock-frequency = <921600>;
+		#clock-cells = <0>;
+	};
+};
+
+&timer {
+	clocks = <&hosc>;
+};
+
+&uart3 {
+	status = "okay";
+	clocks = <&uart3_clk>;
+};
diff --git a/arch/arm64/boot/dts/actions/s700.dtsi b/arch/arm64/boot/dts/actions/s700.dtsi
new file mode 100644
index 000000000000..b54df405aaeb
--- /dev/null
+++ b/arch/arm64/boot/dts/actions/s700.dtsi
@@ -0,0 +1,164 @@
+/*
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	compatible = "actions,s700";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <2>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53", "arm,armv8";
+			reg = <0x0 0x0>;
+			enable-method = "psci";
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53", "arm,armv8";
+			reg = <0x0 0x1>;
+			enable-method = "psci";
+		};
+
+		cpu2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53", "arm,armv8";
+			reg = <0x0 0x2>;
+			enable-method = "psci";
+		};
+
+		cpu3: cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53", "arm,armv8";
+			reg = <0x0 0x3>;
+			enable-method = "psci";
+		};
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		secmon@1f000000 {
+			reg = <0x0 0x1f000000 0x0 0x1000000>;
+			no-map;
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
+	arm-pmu {
+		compatible = "arm,cortex-a53-pmu";
+		interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+		             <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+		             <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+		             <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 13
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 14
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 11
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 10
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+	};
+
+	hosc: hosc {
+		compatible = "fixed-clock";
+		clock-frequency = <24000000>;
+		#clock-cells = <0>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		gic: interrupt-controller@e00f1000 {
+			compatible = "arm,gic-400";
+			reg = <0x0 0xe00f1000 0x0 0x1000>,
+			      <0x0 0xe00f2000 0x0 0x2000>,
+			      <0x0 0xe00f4000 0x0 0x2000>,
+			      <0x0 0xe00f6000 0x0 0x2000>;
+			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+		};
+
+		uart0: serial@e0120000 {
+			compatible = "actions,s900-uart", "actions,owl-uart";
+			reg = <0x0 0xe0120000 0x0 0x2000>;
+			interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart1: serial@e0122000 {
+			compatible = "actions,s900-uart", "actions,owl-uart";
+			reg = <0x0 0xe0122000 0x0 0x2000>;
+			interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart2: serial@e0124000 {
+			compatible = "actions,s900-uart", "actions,owl-uart";
+			reg = <0x0 0xe0124000 0x0 0x2000>;
+			interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart3: serial@e0126000 {
+			compatible = "actions,s900-uart", "actions,owl-uart";
+			reg = <0x0 0xe0126000 0x0 0x2000>;
+			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart4: serial@e0128000 {
+			compatible = "actions,s900-uart", "actions,owl-uart";
+			reg = <0x0 0xe0128000 0x0 0x2000>;
+			interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart5: serial@e012a000 {
+			compatible = "actions,s900-uart", "actions,owl-uart";
+			reg = <0x0 0xe012a000 0x0 0x2000>;
+			interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart6: serial@e012c000 {
+			compatible = "actions,s900-uart", "actions,owl-uart";
+			reg = <0x0 0xe012c000 0x0 0x2000>;
+			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		timer: timer@e024c000 {
+			compatible = "actions,s700-timer";
+			reg = <0x0 0xe024c000 0x0 0x4000>;
+			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "timer1";
+		};
+	};
+};
-- 
2.13.5

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Re: [PATCH 0/4] arm64: Add initial Actions Semi S700 and CubieBoard7 support

[Daniel Lezcano]

Hi Andreas,


On 11/09/2017 04:22, Andreas Färber wrote:
> Hello,
> 
> This series prepares the Actions Semi S700 SoC and Cubietech CubieBoard7.
> It boots equally far as the S900 based Bubblegum-96 these patches are based on,
> i.e. into an initrd with serial and all four cores up.
> 
> I have not yet managed to download the CubieBoard7 sources from Baidu, and the
> Mega download has not yet been fixed, so this is based on the S700 datasheet
> and /proc/device-tree/ from the preinstalled Android.
> 
> Lacking sources and instructions to replace the bootloader on eMMC or to try
> booting from SD, the only working way I've found to boot mainline kernels
> appears to be booting into Android, then issuing "reboot bootloader". U-Boot
> is lacking the saveenv command, so it wasn't possible to change the bootdelay
> to facilitate this.
> 
> Cf. https://en.opensuse.org/HCL:CubieBoard7
> 
> Work branch:
> https://github.com/afaerber/linux/commits/bg96-next
> 
> Have a lot of fun!
> 
> Cheers,
> Andreas
> 
> Cc: Ahha Lee <lee-om/0PrzuAKC1Z/+hSey0Gg@public.gmane.org>
> Cc: support-om/0PrzuAKC1Z/+hSey0Gg@public.gmane.org
> 
> Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: Daniel Lezcano <daniel.lezcano-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
> 
> Andreas Färber (4):
>   dt-bindings: arm: actions: Add S700 and CubieBoard7
>   dt-bindings: timer: Add Actions Semi S700
>   clocksource: owl: Prepare S700
>   arm64: dts: actions: Add S700 and CubieBoard7
> 
>  Documentation/devicetree/bindings/arm/actions.txt  |  15 ++
>  .../bindings/timer/actions,owl-timer.txt           |   1 +

Usually sub system maintainers are also Cc'ed with Dt bindings
definitions and usage.

>  arch/arm64/boot/dts/actions/Makefile               |   2 +
>  arch/arm64/boot/dts/actions/s700-cubieboard7.dts   |  47 ++++++
>  arch/arm64/boot/dts/actions/s700.dtsi              | 164 +++++++++++++++++++++
>  drivers/clocksource/owl-timer.c                    |   1 +
>  6 files changed, 230 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/actions/s700-cubieboard7.dts
>  create mode 100644 arch/arm64/boot/dts/actions/s700.dtsi
> 


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Re: [PATCH 0/4] arm64: Add initial Actions Semi S700 and CubieBoard7 support

[Andreas Färber]

Hi Daniel,

Am 18.09.2017 um 23:50 schrieb Daniel Lezcano:
> On 11/09/2017 04:22, Andreas Färber wrote:
>> Cc: devicetree@vger.kernel.org
>> Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
>> Cc: Thomas Gleixner <tglx@linutronix.de>
>>
>> Andreas Färber (4):
>>   dt-bindings: arm: actions: Add S700 and CubieBoard7
>>   dt-bindings: timer: Add Actions Semi S700
>>   clocksource: owl: Prepare S700
>>   arm64: dts: actions: Add S700 and CubieBoard7
>>
>>  Documentation/devicetree/bindings/arm/actions.txt  |  15 ++
>>  .../bindings/timer/actions,owl-timer.txt           |   1 +
> 
> Usually sub system maintainers are also Cc'ed with Dt bindings
> definitions and usage.

Your MAINTAINERS entry is lacking an entry for the bindings. Can you
please fix that in linux-next? Then the next patches should reach you.

Actually I'm even surprised that it works for the drivers - I would
expect a trailing "/" for the directory (see line 95ff).

Regards,
Andreas

-- 
SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)

Re: [PATCH 0/4] arm64: Add initial Actions Semi S700 and CubieBoard7 support

[Daniel Lezcano]

On 19/09/2017 07:08, Andreas Färber wrote:
> Hi Daniel,
> 
> Am 18.09.2017 um 23:50 schrieb Daniel Lezcano:
>> On 11/09/2017 04:22, Andreas Färber wrote:
>>> Cc: devicetree@vger.kernel.org
>>> Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
>>> Cc: Thomas Gleixner <tglx@linutronix.de>
>>>
>>> Andreas Färber (4):
>>>   dt-bindings: arm: actions: Add S700 and CubieBoard7
>>>   dt-bindings: timer: Add Actions Semi S700
>>>   clocksource: owl: Prepare S700
>>>   arm64: dts: actions: Add S700 and CubieBoard7
>>>
>>>  Documentation/devicetree/bindings/arm/actions.txt  |  15 ++
>>>  .../bindings/timer/actions,owl-timer.txt           |   1 +
>>
>> Usually sub system maintainers are also Cc'ed with Dt bindings
>> definitions and usage.
> 
> Your MAINTAINERS entry is lacking an entry for the bindings. Can you
> please fix that in linux-next? Then the next patches should reach you.
> 
> Actually I'm even surprised that it works for the drivers - I would
> expect a trailing "/" for the directory (see line 95ff).

Right, thanks for pointing this out, I will fix it.

  -- Daniel


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Re: [PATCH 0/4] arm64: Add initial Actions Semi S700 and CubieBoard7 support

[Daniel Lezcano]

On 19/09/2017 07:08, Andreas Färber wrote:
> Hi Daniel,
> 
> Am 18.09.2017 um 23:50 schrieb Daniel Lezcano:
>> On 11/09/2017 04:22, Andreas Färber wrote:
>>> Cc: devicetree@vger.kernel.org
>>> Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
>>> Cc: Thomas Gleixner <tglx@linutronix.de>
>>>
>>> Andreas Färber (4):
>>>   dt-bindings: arm: actions: Add S700 and CubieBoard7
>>>   dt-bindings: timer: Add Actions Semi S700
>>>   clocksource: owl: Prepare S700
>>>   arm64: dts: actions: Add S700 and CubieBoard7
>>>
>>>  Documentation/devicetree/bindings/arm/actions.txt  |  15 ++
>>>  .../bindings/timer/actions,owl-timer.txt           |   1 +
>>
>> Usually sub system maintainers are also Cc'ed with Dt bindings
>> definitions and usage.
> 
> Your MAINTAINERS entry is lacking an entry for the bindings. Can you
> please fix that in linux-next? Then the next patches should reach you.
> 
> Actually I'm even surprised that it works for the drivers - I would
> expect a trailing "/" for the directory (see line 95ff).

Done.

https://git.linaro.org/people/daniel.lezcano/linux.git/commit/?h=clockevents/next&id=acdbb48efecb03bc5a6e8e82447208fdd342eb89

Should hit linux-next soon.


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